数字光纤模块规格书
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FBP3524-L2xx
1.25Gbps SFP Bi-Directional Transceiver, 20km Reach
1310nm TX / 1550 nm RX
Features
●Dual data-rate of 1.25Gbps/1.063Gbps operation
●1310nm FP laser and PIN photodetector for 20km transmission
●Compliant with SFP MSA and SFF-8472 with single LC receptacle
●Digital Diagnostic Monitoring:
Internal Calibration or External Calibration
●Compatible with SONET OC-24-LR-1
●Compatible with RoHS
●+3.3V single power supply
●Operating case temperature:
Standard : 0 to +70°C
Industrial : -40 to +85°C
Applications
●Gigabit Ethernet
●Fiber Channel
●Switch to Switch interface
●Switched backplane applications
●Router/Server interface
●Other optical transmission systems
Description
The SFP-BIDI transceivers are high performance, cost effective modules supporting dual data-rate of 1.25Gbps/1.0625Gbps and 20km transmission distance with SMF.
The transceiver consists of three sections: a FP laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.
The transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. For further information, please refer to SFP MSA.
Absolute Maximum Ratings
Table 1 - Absolute Maximum Ratings
Parameter
Symbol
Min
Max
Unit
Supply Voltage Vcc -0.5 4.5 V Storage Temperature Ts -40 +85 °C Operating Humidity
-
5
85
%
Recommended Operating Conditions
Table 2 - Recommended Operating Conditions
Parameter
Symbol
Min
Typical
Max
Unit
Operating Case Temperature Standard Tc 0 +70 °C Industrial
-40 +85 °C Power Supply Voltage Vcc 3.13 3.3 3.47 V Power Supply Current Icc 300 mA Data Rate
1.25
Gbps
Optical and Electrical Characteristics
FBP3524-L2xx: (FP and PIN, 1310nm, 20km Reach) Table 3 - Optical and Electrical Characteristics
Parameter Symbol Min
Typical Max Unit Notes
Vcc
Temp
TD+/- TxFault TxDis
LOS
RD+/-
SCL SDA
LD Driver LD
PIN+TIA
Post Amp I2C Controller
EEPROM
ADC/DAC
Transmitter
Centre Wavelength λc 1260 1310 1360 nm
Spectral Width (RMS) ∆λ 4 nm
Average Output Power Pout -9 -2 dBm 1 Extinction Ratio ER 9 dB
Optical Rise/Fall Time (20%~80%) tr/tf 0.26 ns Data Input Swing Differential V IN400 1800 mV 2 Input Differential Impedance Z IN90 100 110 Ω
Disable 2.0 Vcc V TX Disable
Enable 0 0.8 V
Fault 2.0 Vcc V TX Fault
Normal 0 0.8 V
Receiver
Centre Wavelength λc1530 1570 nm
Receiver Sensitivity -23 dBm 3
Receiver Overload -3 dBm 3
LOS De-Assert LOS D-24 dBm
LOS Assert LOS A-35 dBm
LOS Hysteresis 1 4 dB Data Output Swing Differential Vout 370 1800 mV 4
High 2.0 Vcc V
LOS
Low 0.8 V
Notes:
1. The optical power is launched into SMF.
2. PECL input, internally AC-coupled and terminated.
3. Measured with a PRBS 27-1 test pattern @1250Mbps, BER ≤1×10-12.
4. Internally AC-coupled.
Timing and Electrical
Table 4 - Timing and Electrical
Parameter Symbol Min Typical Max Unit Tx Disable Negate Time t_on 1 ms Tx Disable Assert Time t_off 10 µs